The American Science Serifs. 



Packard's Zoology. ADVANCED COURSE. 



By A. S. PACKARD, Professor in Brown University, viii-f 722 pp. 8vo. 



Designed for college classes, to be used either in the recita- 

 tion-room or in the laboratory. It will serve as a guide to 

 the student who, with a desire to get at first-hand a general 

 knowledge of the structure of leading types of life, examines 

 living animals, watches their movements and habits, and 

 finally dissects them. He is presented first with the facts, 

 and led to a tnorough knowledge of a few typical forms, then 

 taught to compare these with others, and finally led to the 

 principles or inductions growing out of the facts. 



Packard's Zoology. BRIEFER COURSE. viii+338pp. i2mo. 



The distinctive characteristic of this book is its use of the 

 object method. The author would have the pupils first examine 

 and roughly dissect a fish, in order to attain some notion of 

 vertebrate structure as a basis of comparison. Beginning 

 then with the lowest forms, he leads the pupil through the 

 whole animal kingdom until man is reached. As each of its 

 great divisions comes under observation, he gives detailed 

 instructions for dissecting some one animal as a type of the 

 class, and ba es the study of other forms on this. 



Packard's First Lessons in Zoology. ELEMENTARY 



COURSE. viii -\- 2gc pp. i2mo. 



In scope this book differs considerably from those men- 

 tioned above. Pince it is meant for young beginners, it de- 

 scribes but few types, mostly those of the higher orders, and 

 discusses their relations to one another and to their surround- 

 ings. The aim, however, is the same with that of the others ; 

 namely, to make clear the general principles of the science, 

 rather than to fill the pupil's mind with a mass of what may 

 appear to him unrelated facts. Classification is fully treated 



